Saturday, October 29, 2011

Properties of water

Here's a decent video about water's unique properties. Watch the video and answer the following questions:
  1. Describe the shape of a water molecule
  2. What is cohesion? 
  3. What property water molecule makes it cohesive?
  4. What property of water is attributed to its cohesive nature?  (hint: think back to the paper clip activity!)
  5. What is adhesion?
  6. What is capillary action?  Does it occur because of water's cohesive nature or adhesive nature?
  7. How does a droplet of water compare to a droplet of alcohol?  Which has stronger cohesive forces?
  8. Does mercury have more or less cohesion than water?
  9. Go back into your notes or to p. 75 of your textbook:  What are other terms used to describe cohesive and adhesive forces?
If you'd like, fill out a diagram or table that lists water's cohesive and adhesive properties.



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